Identification of proteins and metabolic networks associated with sucrose accumulation in sugarcane (Saccharum spp. interspecific hybrids)

文献类型： 外文期刊

第一作者： Qin, Cui-Xian

作者： Qin, Cui-Xian;Chen, Zhong-Liang;Wang, Miao;Li, Ao-Mei;Liao, Fen;Li, Yang-Rui;Lakshmanan, Prakash;Huang, Dong-Liang;Chen, Zhong-Liang;Long, Ming-Hua;Wang, Ming-Qiao;Lakshmanan, Prakash;Lakshmanan, Prakash

作者机构：

关键词： Sugarcane; proteomics; differential expression; proteins; sucrose accumulation; sugar metabolism

期刊名称：JOURNAL OF PLANT INTERACTIONS （ 影响因子：2.992； 五年影响因子：2.954 ）

ISSN： 1742-9145

年卷期： 2021 年 16 卷 1 期

页码：

收录情况： SCI

摘要： The rate of improvement of sugar content in sugarcane remains low for decades worldwide. Our previous transcriptome studies provided an atlas of sucrose accumulation-related gene expression, but little is known about the proteins involved. Here, we conducted a proteomic analysis of experimentally altered sucrose accumulation in sugarcane. Analysis of stem proteomes of sugarcane ripener ethephon treated high- and low-sugar genotypes had identified 2983 proteins of which 139 were significantly differentially expressed (DEPs). These DEPs were found to be associated with sugar metabolism-related processes with 25 of them may have a regulatory role in sucrose accumulation. The key proteins identified include UDP-glucose 6-dehydrogenase associated with amino sugar and nucleotide sugar metabolism; those involved in carbon fixation; and fructokinase, beta-D-glucosidase, and alpha-glucan phosphorylase involved in starch and sucrose metabolism. Distinct genotype- and ethephon-dependent DEP expression was evident providing new insights into one of the most intractable sugarcane traits to breeding.

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